tetraethyl lead
(chemistry) A toxic organometallic compound, (C₂H₅)₄Pb, added to petroleum/gasoline as an antiknock agent.
(intransitive, dated) To be destined to happen to someone or to fall in someone's possession.
plural of assister
A construction in parties and celebrations which appears to be (and often partially consists of) a large cake, but which really conceals a person inside who will jump out to surprise the partygoers
かつて性能向上のためにガソリンに添加されていたテトラエチル鉛は、深刻な健康および環境リスクのために使用が減少しました。
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